java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/for_infinite_loop_2_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-18e5b2d-m [2018-11-18 23:58:04,873 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 23:58:04,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 23:58:04,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 23:58:04,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 23:58:04,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 23:58:04,895 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 23:58:04,897 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 23:58:04,899 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 23:58:04,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 23:58:04,902 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 23:58:04,903 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 23:58:04,904 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 23:58:04,905 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 23:58:04,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 23:58:04,909 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 23:58:04,910 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 23:58:04,913 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 23:58:04,923 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 23:58:04,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 23:58:04,928 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 23:58:04,929 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 23:58:04,935 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-18 23:58:04,948 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 23:58:04,974 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 23:58:04,975 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 23:58:04,976 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 23:58:04,976 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 23:58:04,977 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 23:58:04,977 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 23:58:04,977 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 23:58:04,978 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 23:58:04,978 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 23:58:04,978 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 23:58:04,978 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 23:58:04,978 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 23:58:04,979 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 23:58:04,979 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 23:58:04,979 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 23:58:04,979 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 23:58:04,979 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 23:58:04,980 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 23:58:04,981 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 23:58:04,981 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 23:58:04,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 23:58:04,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 23:58:04,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 23:58:04,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 23:58:04,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 23:58:04,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 23:58:04,983 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 23:58:04,983 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 23:58:04,983 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 23:58:04,983 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 23:58:04,983 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 23:58:05,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 23:58:05,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 23:58:05,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 23:58:05,074 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 23:58:05,074 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 23:58:05,075 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-18 23:58:05,142 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895b76780/33a08835ea5a4f8e9801252d4be4adc3/FLAG6dd383122 [2018-11-18 23:58:05,603 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 23:58:05,604 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-18 23:58:05,610 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895b76780/33a08835ea5a4f8e9801252d4be4adc3/FLAG6dd383122 [2018-11-18 23:58:05,984 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895b76780/33a08835ea5a4f8e9801252d4be4adc3 [2018-11-18 23:58:05,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 23:58:05,994 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-18 23:58:05,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 23:58:05,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 23:58:05,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 23:58:06,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:58:05" (1/1) ... [2018-11-18 23:58:06,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39aff073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06, skipping insertion in model container [2018-11-18 23:58:06,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:58:05" (1/1) ... [2018-11-18 23:58:06,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 23:58:06,037 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 23:58:06,273 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 23:58:06,281 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 23:58:06,303 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 23:58:06,319 INFO L195 MainTranslator]: Completed translation [2018-11-18 23:58:06,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06 WrapperNode [2018-11-18 23:58:06,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 23:58:06,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 23:58:06,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 23:58:06,321 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 23:58:06,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... [2018-11-18 23:58:06,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... [2018-11-18 23:58:06,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... [2018-11-18 23:58:06,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... [2018-11-18 23:58:06,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... [2018-11-18 23:58:06,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... [2018-11-18 23:58:06,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... [2018-11-18 23:58:06,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 23:58:06,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 23:58:06,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 23:58:06,359 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 23:58:06,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 23:58:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 23:58:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 23:58:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 23:58:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 23:58:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 23:58:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 23:58:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 23:58:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 23:58:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 23:58:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 23:58:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 23:58:06,934 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 23:58:06,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:58:06 BoogieIcfgContainer [2018-11-18 23:58:06,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 23:58:06,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 23:58:06,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 23:58:06,940 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 23:58:06,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:58:05" (1/3) ... [2018-11-18 23:58:06,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b32ecd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:58:06, skipping insertion in model container [2018-11-18 23:58:06,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:58:06" (2/3) ... [2018-11-18 23:58:06,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b32ecd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:58:06, skipping insertion in model container [2018-11-18 23:58:06,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:58:06" (3/3) ... [2018-11-18 23:58:06,944 INFO L112 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-18 23:58:06,954 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 23:58:06,963 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 23:58:06,981 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 23:58:07,014 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 23:58:07,014 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 23:58:07,015 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 23:58:07,015 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 23:58:07,015 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 23:58:07,015 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 23:58:07,015 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 23:58:07,016 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 23:58:07,016 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 23:58:07,035 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-18 23:58:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 23:58:07,041 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:58:07,042 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:58:07,045 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:58:07,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:58:07,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1153397670, now seen corresponding path program 1 times [2018-11-18 23:58:07,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:58:07,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:58:07,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:58:07,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:58:07,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:58:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:58:07,213 INFO L256 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {24#true} is VALID [2018-11-18 23:58:07,217 INFO L273 TraceCheckUtils]: 1: Hoare triple {24#true} assume true; {24#true} is VALID [2018-11-18 23:58:07,217 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {24#true} {24#true} #38#return; {24#true} is VALID [2018-11-18 23:58:07,218 INFO L256 TraceCheckUtils]: 3: Hoare triple {24#true} call #t~ret3 := main(); {24#true} is VALID [2018-11-18 23:58:07,218 INFO L273 TraceCheckUtils]: 4: Hoare triple {24#true} ~i~0 := 0;~x~0 := 0;~y~0 := 0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~n~0 := #t~nondet1;havoc #t~nondet1; {24#true} is VALID [2018-11-18 23:58:07,219 INFO L273 TraceCheckUtils]: 5: Hoare triple {24#true} assume !!(~n~0 > 0);~i~0 := 0; {24#true} is VALID [2018-11-18 23:58:07,222 INFO L273 TraceCheckUtils]: 6: Hoare triple {24#true} assume !true; {25#false} is VALID [2018-11-18 23:58:07,223 INFO L256 TraceCheckUtils]: 7: Hoare triple {25#false} call __VERIFIER_assert((if 0 != ~x~0 then 1 else 0)); {25#false} is VALID [2018-11-18 23:58:07,224 INFO L273 TraceCheckUtils]: 8: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID [2018-11-18 23:58:07,224 INFO L273 TraceCheckUtils]: 9: Hoare triple {25#false} assume 0 == ~cond; {25#false} is VALID [2018-11-18 23:58:07,224 INFO L273 TraceCheckUtils]: 10: Hoare triple {25#false} assume !false; {25#false} is VALID [2018-11-18 23:58:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:58:07,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 23:58:07,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 23:58:07,237 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 23:58:07,240 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:58:07,244 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-18 23:58:07,297 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:58:07,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 23:58:07,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 23:58:07,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 23:58:07,308 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-11-18 23:58:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:58:07,380 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2018-11-18 23:58:07,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 23:58:07,381 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 23:58:07,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:58:07,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 23:58:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 42 transitions. [2018-11-18 23:58:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-18 23:58:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 42 transitions. [2018-11-18 23:58:07,397 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 42 transitions. [2018-11-18 23:58:07,763 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:58:07,773 INFO L225 Difference]: With dead ends: 35 [2018-11-18 23:58:07,773 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 23:58:07,777 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 23:58:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 23:58:07,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 23:58:07,816 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:58:07,817 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2018-11-18 23:58:07,817 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-18 23:58:07,817 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-18 23:58:07,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:58:07,821 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-18 23:58:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-18 23:58:07,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:58:07,822 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:58:07,822 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-18 23:58:07,823 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-18 23:58:07,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:58:07,826 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-18 23:58:07,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-18 23:58:07,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:58:07,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:58:07,827 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:58:07,827 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:58:07,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 23:58:07,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-18 23:58:07,831 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2018-11-18 23:58:07,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:58:07,832 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-18 23:58:07,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 23:58:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-18 23:58:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 23:58:07,833 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 23:58:07,833 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 23:58:07,834 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 23:58:07,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 23:58:07,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1085730297, now seen corresponding path program 1 times [2018-11-18 23:58:07,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 23:58:07,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 23:58:07,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:58:07,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 23:58:07,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 23:58:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 23:58:08,053 INFO L256 TraceCheckUtils]: 0: Hoare triple {129#true} call ULTIMATE.init(); {129#true} is VALID [2018-11-18 23:58:08,054 INFO L273 TraceCheckUtils]: 1: Hoare triple {129#true} assume true; {129#true} is VALID [2018-11-18 23:58:08,054 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {129#true} {129#true} #38#return; {129#true} is VALID [2018-11-18 23:58:08,054 INFO L256 TraceCheckUtils]: 3: Hoare triple {129#true} call #t~ret3 := main(); {129#true} is VALID [2018-11-18 23:58:08,055 INFO L273 TraceCheckUtils]: 4: Hoare triple {129#true} ~i~0 := 0;~x~0 := 0;~y~0 := 0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~n~0 := #t~nondet1;havoc #t~nondet1; {131#(= main_~x~0 0)} is VALID [2018-11-18 23:58:08,062 INFO L273 TraceCheckUtils]: 5: Hoare triple {131#(= main_~x~0 0)} assume !!(~n~0 > 0);~i~0 := 0; {131#(= main_~x~0 0)} is VALID [2018-11-18 23:58:08,064 INFO L273 TraceCheckUtils]: 6: Hoare triple {131#(= main_~x~0 0)} assume true; {131#(= main_~x~0 0)} is VALID [2018-11-18 23:58:08,066 INFO L273 TraceCheckUtils]: 7: Hoare triple {131#(= main_~x~0 0)} assume !false; {131#(= main_~x~0 0)} is VALID [2018-11-18 23:58:08,067 INFO L256 TraceCheckUtils]: 8: Hoare triple {131#(= main_~x~0 0)} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {132#(= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2018-11-18 23:58:08,080 INFO L273 TraceCheckUtils]: 9: Hoare triple {132#(= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {133#(= 1 __VERIFIER_assert_~cond)} is VALID [2018-11-18 23:58:08,095 INFO L273 TraceCheckUtils]: 10: Hoare triple {133#(= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {130#false} is VALID [2018-11-18 23:58:08,095 INFO L273 TraceCheckUtils]: 11: Hoare triple {130#false} assume !false; {130#false} is VALID [2018-11-18 23:58:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 23:58:08,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 23:58:08,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 23:58:08,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-18 23:58:08,103 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 23:58:08,103 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 23:58:08,165 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:58:08,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 23:58:08,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 23:58:08,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 23:58:08,166 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2018-11-18 23:58:08,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:58:08,437 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-18 23:58:08,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 23:58:08,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-18 23:58:08,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 23:58:08,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 23:58:08,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-18 23:58:08,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 23:58:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-18 23:58:08,442 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 16 transitions. [2018-11-18 23:58:08,478 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 23:58:08,479 INFO L225 Difference]: With dead ends: 16 [2018-11-18 23:58:08,479 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 23:58:08,480 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 23:58:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 23:58:08,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 23:58:08,480 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 23:58:08,480 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-18 23:58:08,481 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-18 23:58:08,481 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-18 23:58:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:58:08,481 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 23:58:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 23:58:08,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:58:08,482 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:58:08,482 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-18 23:58:08,482 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-18 23:58:08,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 23:58:08,482 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 23:58:08,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 23:58:08,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:58:08,483 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 23:58:08,483 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 23:58:08,483 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 23:58:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 23:58:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 23:58:08,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-11-18 23:58:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 23:58:08,484 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 23:58:08,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 23:58:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 23:58:08,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 23:58:08,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 23:58:08,563 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 23:58:08,563 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 23:58:08,563 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 23:58:08,563 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 23:58:08,563 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 23:58:08,564 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 23:58:08,564 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-11-18 23:58:08,564 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-11-18 23:58:08,564 INFO L421 ceAbstractionStarter]: At program point L17(line 17) the Hoare annotation is: (= main_~x~0 0) [2018-11-18 23:58:08,564 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 15 18) no Hoare annotation was computed. [2018-11-18 23:58:08,564 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-18 23:58:08,564 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 18) no Hoare annotation was computed. [2018-11-18 23:58:08,564 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-11-18 23:58:08,565 INFO L421 ceAbstractionStarter]: At program point L15-3(lines 15 18) the Hoare annotation is: (= main_~x~0 0) [2018-11-18 23:58:08,565 INFO L421 ceAbstractionStarter]: At program point L15-4(lines 15 18) the Hoare annotation is: false [2018-11-18 23:58:08,565 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-18 23:58:08,565 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-18 23:58:08,565 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-18 23:58:08,565 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 23:58:08,565 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-18 23:58:08,565 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-18 23:58:08,567 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-18 23:58:08,567 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-18 23:58:08,567 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-18 23:58:08,568 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-18 23:58:08,569 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2018-11-18 23:58:08,569 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-18 23:58:08,569 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-18 23:58:08,569 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2018-11-18 23:58:08,569 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-18 23:58:08,569 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2018-11-18 23:58:08,570 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2018-11-18 23:58:08,570 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-18 23:58:08,570 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-18 23:58:08,570 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-18 23:58:08,570 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2018-11-18 23:58:08,570 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2018-11-18 23:58:08,571 INFO L163 areAnnotationChecker]: CFG has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-18 23:58:08,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:58:08 BoogieIcfgContainer [2018-11-18 23:58:08,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 23:58:08,581 INFO L168 Benchmark]: Toolchain (without parser) took 2587.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -692.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2018-11-18 23:58:08,583 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 23:58:08,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-18 23:58:08,584 INFO L168 Benchmark]: Boogie Preprocessor took 37.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-18 23:58:08,585 INFO L168 Benchmark]: RCFGBuilder took 576.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -770.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-11-18 23:58:08,586 INFO L168 Benchmark]: TraceAbstraction took 1643.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. [2018-11-18 23:58:08,591 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 326.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 576.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -770.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1643.22 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.0 MB). Peak memory consumption was 67.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 6 SDslu, 25 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 12 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...